<div id="main" class="flex-fill flex-vbox" style="max-height:100%">
    <div class="header">
        <h1>系统状态</h1>
    </div>
    <table>
        <tbody>
            <tr><td>上电时间</td><td>aaa</td></tr>
            <tr><td>内存容量</td><td>aaa</td></tr>
            <tr><td>剩余内存</td><td>aaa</td></tr>
        </tbody>
    </table>
</div>